Feed-water regulator.



J. W. GIVEN &' J. L. FOGG. FEED WATER REGULATOR. APPLIOATION FILED 001',1a, 1908.

935,65 1 Patented Oct. 5, 1909.

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UNITED STATES PATENT OFFICE.

JAMES W. GIVEN, 0F SUTTON, AND JOHN L. FOGG, OF BEALLS MILLS, WESTVIRGINIA; SAID FOGG ASSIGNOR T0 SAID GIVEN.

FEED-WATER REGULATOR.

To all whom it may concern:

, Be it known that we, JAMEs IV. GIVEN and JOHN L. Foes, citizens of theUnited States, residing at Sutton and Bealls Mills, in the counties ofBraxton and Lewis, respectively, and State of est Virginia, haveinvented a new and useful Feed-Water Regulator for Boilers, of which thefollowing is a specification.

The primaryobject of the present invention is to provide novel andexceedingly simple mechanism for automatically controlling the supply offeed water to a boiler, said mechanism being so arranged that when thewater in the boiler falls below a certain level, a fresh supply will beadmitted thereto, and as soon as the desired level has been established,such supply will be automatically cut off, thereby eliminating thedanger incident to a boiler feed that is manually controlled.

Two practical embodiments of the invention are disclosed in theaccompanying drawings, wherein Figure 1 is an end elevation of a boilershowing one form of construction applied thereto. Fig. 2 is a sideelevation of the same. Fig. 3 is a perspective view of the valvemechanism and pipe system. Fig. 41 is a view of a slightly modified formof construction.

Similar reference numerals designate corresponding parts in all thefigures of the drawings.

In the embodiment disclosed in Figs. 1, 2 and 3, the boiler isdesignated by the reference numeral 5, and may be of any well knowntype. The usual feed pipe 6 leading from a pump, inspirator or othersuitable mechanism is connected to the boiler 5, and has therein a valvecasing 7. An overflow or waste pipe 8, leads from the pipe 6 in advanceof the casing 7, and is also provided with a valve casing 9. Valves 10and 11 are located respectively in the casings 7 and 9. A tie 12connects the two valve casings, and a post 13 is supported on this tie.A lever 14, fulcrumed upon the post- 13, has its ends connected as shownat 15 to the valves 10 and 11. An upstanding thermostatic pipe 16 hasits lower end in communication with the boiler 5. In the presentembodiment, this communication is obtained through the usual gagemechanism 17, though the pipe 16 may be directly connected to theboiler. The

Specification of Letters Patent.

Application filed October 16, 1908.

Patented Oct. 5, 1909.

Serial No. 458,086.

upper end of the pipe 16 is closed and has an offset arm 18, to which isconnected the upper end of a link that comprises relatively adjustablesections 19. The lower end of this link is connected to the lever 11, asshown. The operation of this structure is based on the well known factthat metal when in contact with steam will expand to a greater extentthan when in contact with hot water. The lower end of the thermostaticpipe 16 is therefore disposed at the lowest limit of the water leveldesired in the boiler. Therefore as long as the lower end of said pipe16 is covered, the said pipe will be in its contracted condition, inwhich case, the sup ply cont-rolling valve 10 is closed, while the wastecontrolling valve 11 is opened. \Vhen the level of the water in theboiler falls below the lower end of the pipe 16, steam will enter saidpipe, and cause the same to expand, thereby increasing its length. As aresult, the supply controlling valve 10 will be opened, while the wastecontrolling valve 11 will be simultaneously closed. Tater willconsequently be supplied to the boiler and this supply will continueuntil the lower end of the thermostatic pipe 16is again closed. Thenthis occurs, the steam in the pipe 16 will condense, creating a partialvacuum that will cause the water to enter said pipe 16. The pipetherefore again contracts, closing the supply controlling valve andopening the waste controlling valve.

In Fig. 4:, a slightly different embodiment of the invention isdisclosed. The supply controlling valve in this embodiment is designated20 and the waste controlling valve 21. The two valve casings areconnected to a tie 22 having a post 23 on which is fulcrumed a lever 24that is connected to the two valves. The boiler is shown at 24 andextending therefrom is a thermostatic pipe 26, which in this embodimentis coiled. The upper end of the pipe has a link connection 27 with thelever 24. It will be evident that this structure operates exactly thesame as the above described embodiment, and has all the advantages.

From the foregoing, it is thought that the construction, operation andmany advantages of the herein described invention will be apparent tothose skilled in the art, without further description, and it will beunderstood that various changes in the size, shape, proportion and minordetails of construction may be resorted to without departing from thespirit or sacrificing any of the advantages of the invention.

Having thus fully described our invent-ion, what we claim as new, anddesire to secure by Letters Patent, is

1. The combination with a steam boiler, of a tubular thermostat locatedexteriorly thereof but connected at its lower end to said boiler at thelow-water level thereof, a feed pipe entering the boiler, a valvetherein, a waste pipe leading from the feed pipe, a valve therein, alever connected at one end to the feed pipe valve and at its other endconnected to the waste pipe valve, and a rod connected to one end of thelever and at its other end to the thermostat, whereby when thethermostat expands the feed water valve shall be opened and the wastevalve closed and when the thermostat contracts the teed water valveshall be closed and the waste valve opened.

2. The combination with a steam boiler, of a tubular thermostat locatedexteriorly thereof but connected at one end to the lowwater level of theboiler, a feed pipe having an angularly bent portion, the end of thefeed pipe entering the boiler, a waste pipe connected to the feed pipeat the beginning of the angularly bent portion, said waste pipe runningfor a distance parallel with the feed pipe beyond the angularly bentportion, a valve in said waste pipe, a valve in the feed pipe directlyopposite to the waste pipe, a tie pipe connecting the parallel portionsof the feed pipe and the waste pipe and having an upwardly projectingstandard thereon, a lever pivoted in the standard, connections at theopposite ends of said lever to the waste pipe valve and feed pipe valverespectively, and a connection from the end of said lever to thethermostat, whereby when the thermostat expands, the feed water valveshall be opened and the waste valve closed and when the thermostatcontracts the feed water valve shall be closed and the waste valveopened.

In testimony, that we claim the foregoing as our own, we have heretoaffixed our signatures in the presence of two witnesses.

' JAMES V. GIVIN.

JOHN L. FOGG, lVitnesses J. R. GIVEN, B B. Boees.

